Plasterboard hoist



June 14, 1949. A. F. CORE 1 2,472,887

v.PLQTEMaOARD HoIsT Filed July 12, 1946 2 sheets-sheet 1 e' @wfg/MM@ATTORNEYS June 14, 1949. A. F. coRE 2,472,887

. PLASTERBOARD HOIST Filed Ju1y12, 194s z sheets-sheet 2 fly. 3.

ZM F 4'. 54 24 Z6 zz 3@ 32 4425 ATTD R N EYE Patented June 14, 1949Unirse stares ZXfeATsNT OFFICE 2,472,887 rLAs'rnnnoaRD Hois'r AaronFranklin Core; Sacramento, Calif.

Application July l2, 1946, Serial No. 683,075

l Claim. l

This invention relates to a plaster board hoist and more particularly toa device for retaining the plaster board rmly and evenly against theceiling.

An object of the invention is to provide a hoist that will quickly andeiiciently raise a sheet of plaster board upwardly for contact with theceiling to assist a Workman in applying the plaster board to theceiling,

Another object of the invention is to provide a device that is simple tooperate, durable, and can be inexpensively manufactured.

With the above and other objects in view, the invention consists of thenovel details of construction, arrangement and combination of parts morefully hereinafter described in the accompanying drawings in which:

Figure 1 is an elevational view of an embodiment of the invention;

Figure 2 is a detailed perspective view of one corner of the table anddrop leaf therefor;

Figure 3 is an end View of the hoist;

Figure l is a sectional view on the line le-Ii of Figure 5 and Figure 5is a sectional view on the line 5-5 of Figure 4.

Referring more in detail to the drawing, the reference numeral l0generally designates the hoist which comprises the base l2 which isprovided with swivel casters i4 at its four lower corners.

Secured to the medial portion of the base l2 by fasteners l is thestandard supporting meniber i8 having the upstanding socket 2d at itscenter thereof to receive the tubular standard il?.

Positioned at the top of the standard 2g and secured thereto byfasteners 2li are the parallel aligned complementary shaped plates 26which are secured in spaced relation to each other by bolts Ml on whichare mounted the tubular spacers Sii.

Mounted for rotation adjacent one end thereof, intermediate the plates2B, is the Winch 32 having the crank handle 34 for manipulation thereof.

Secured intermediately of the plates 2S and the standard 2E and winch 32by welding 36 is the tubular sleeve 38 in which is slidably mounted theelevator or table standard dll, and the stand-- ard il@ is parallelvertically with standard 22 and is provided at its lower end with afastener l2 to which is coupled the cable ld of the winch 'Thus bymanipulation of the winch, the standard will be raisedand lowered invertical relation with the base l2 and standard 22.

Secured to the upper end of the standard lll by a T coupling 46 is atable or platform 48 which is provided at one end with a head drop leaf50 which is hingedly connected at 5i to the table, and vertical brackets54 coact with the notches S in leaf braces 58 pivotally connected at 56to the leaf to retain the leaf in raised position as desired.

At the opposite end of the table, plates 632 are provided for mountingthe roller 64 and plates 6E pivotally connected to plates 62 hinge theback leaf 68 to the table 48 and brackets 54 coact with the notches 56in leaf braces 53 pivotally connected at 'l0 to the leaf to retain theleaf in raised position as desired.

Pivotally secured to the T-coupling 'l2 which is secured to the table 48on the undersurface thereof is the vertically inclined rack l-S whichcomprises two parallel spaced and notched angle bars '16. The rackextends down in parallel relation to the standard 22 intermediate theplates 2e and an angular hand lever 'lil is pivoted at intermediate thebars i6 and plates 2t.

The lever 18 engages the bolt 82 mounted in the arcuate aligned slots 84in the plates 26 to move the bolt out of engagement with the notchedbars it when it is desired to raise and lower the table, and the boltwill automatically by gravity return to engagement with the notched barsi6 when the lever is released.

To operate the hoist, the table leaf '5o is raised, then a sheet ofplaster board is positioned at the opposite side of the hoist with oneend on the oor and the board resting against the roller te. Then the endof the board is raised until it is almost level with the table when leaft3 is 'raised into position.

The winch is manipulated to raise the table until the board is incontact with the ceiling. lThe board can then be easily nailed to theceil- No staging is required. When the nailing has been completed, thebolt 82 is released by the lever 'i8 and the Winch manipulated to lowerthe table.

The table can be used without using the braces, and one man canmanipulate the hoist with ease.

It is believed that from the foregoing description, the operation andconstruction of the hoist will be apparent to those skilled in the art,and it is to be understood that changes in the minor details ofconstruction may be resorted to provided they fall within the spirit ofthe invention. `and the scope of the appended claim.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

A device of the character described, comprising a base, a standardsecured to the base at the center thereof, parallel plates secured tothe top of said standard, a sleeve intermediate said plates, a secondstandard slidably mounted in said sleeve. means for mounting a table onsaid second standard, leaves pivotally mounted on the opposite ends ofsaid table, means carried by said leaves and means carried by said tablecooperating with said rst means to retain said leaves in raisedposition, a vertically inclined rack secured to the undersurface of saidtable, arcuate slots provided in said plates in opposed relation to eachother, means carried in said slots and engageable with said rack toretain said table in elevated position above said base, a leverpivotally mounted intermediate of said plates and engageable with saidlast means to release it from engagement with said rack to permit saidtable to be lowered and means for raising said second standard mountedintermediately said plates.

AARON FRANKLIN CORE.

REFERENCES CITED The following references are of record in the '10 le ofthis patent:

UNITED STATES PATENTS

